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Tascam iU2

Audio/MIDI Interface for iPhone 4S, iPhone 4, iPad 2, iPad & iPod Touch (4th generation)


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Interface for iOS Devices

The iU2 by TASCAM is a new, stellar-quality audio interface for iOS devices such as the iPhone, iPad and iPod Touch. It comes with all the best features of TASCAMís critically-acclaimed USB audio interfaces, including a pair of fantastic sounding mic inputs. The XLR inputs also have phantom power for use with condenser microphones that require it.

These feed an onboard microphone preamp and A/D converter for better sound performance than those built into iPhone and iPad Ė true stereo recording with low noise and less tendency to distort. The inputs also accept line-level signals or you can plug a guitar or bass directly into your device.

In addition to compatibility with iOS devices, the iU2 also works with Mac and Windows computers. A zero-latency monitoring path allows musicians to hear themselves directly through the unit, without any distracting delay. MIDI in and out are provided to interface with synths and drum machines, and a digital output connects to digital mixers or recorders.

When youíre ready to get serious with iPad music recording, step up to the pro-quality interface of TASCAMís iU2.

What's In The Box?

  1. (1) iU2 unit
  2. (1) USB cable
  3. (1) MIDI-to-1/8" (3.5mm) stereo
    mini-jack adapter cable
  4. (1) XLR (female)-to-1/4" (6.3mm)
    standard TRS jack adapter cable
  5. (1) Warranty
  6. (1) Owner's Manual

Product Features:

  • Audio/MIDI Interface for Mac, Windows and iOS devices
  • Compatible with iPhone, iPad and iPod Touch
  • Two XLR mic inputs with phantom power
  • Two balanced line inputs
  • Instrument-level input for guitar or bass
  • MIDI in and out
  • Onboard A/D conversion for low-noise and
    distortion when recording with iOS devices
  • Zero-latency direct monitoring
  • S/PDIF Digital Output
  • Also found as: iU-2
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty


Analog Input & Output Ratings:

  • INPUT L and/or R switch set to MIC:
    • Balanced
    • Connector: 1/4" (6.3 mm) TRS standard jack
      (Tip: HOT, Ring: COLD, Sleeve: GND)
    • Input Impedance: 2.2 k ohms
    • Nominal Input Level: -63 dBu to -17 dBu
    • Maximum Input Level: -1 dBu
  • Line L and/or R switch set to LINE:
    • Balanced
    • Connector: 1/4" (6.3 mm) TRS standard jack
      (Tip: HOT, Ring: COLD, Sleeve: GND)
    • Input Impedance: 10 k ohms
    • Nominal Input Level: -38 dBu to +8 dBu
    • Maximum Input Level: +24 dBu
  • Guitar Input (INPUT L switch set to GUITAR):
    • Unbalanced
    • Connector: 1/4" (6.3 mm) TRS standard jack
      (Tip: HOT, Ring: COLD, Sleeve: GND)
    • Input Impedance: 1 M ohms
    • Nominal Input Level: -55 dBV to -12 dBV
    • Maximum Input Level: +4 dBV
  • Line Output (LINE OUT L/R):
    • Unbalanced
    • Connectors: RCA pin jack
    • Output Impedance: 100 ohms
    • Maximum Output Level: +6 dBV
  • Headphone Output:
    • Connector: 1/8" (3.5 mm) stereo mini jack
    • Maximum Output: 10 mW + 10 mW

Digital Output Ratings:

  • Coaxial (DIGITAL OUT):
    • Connector: RCA pin jack
    • Format: IEC 60958-3 (S/PDIF)
    • Output Impedance: 75 ohms
    • Level: 0.5 Vp-p/75 ohms

Control Input/Output Ratings:

  • MIDI Input (MIDI IN):
    • Connector: 1/8" (3.5 mm) stereo mini jack
    • Format: Standard MIDI format
  • MIDI Output (MIDI OUT):
    • Connector: 1/8" (3.5 mm) stereo mini jack
    • Format: Standard MIDI format
  • USB (HOST switch set to COMPUTER):
    • Connector: Mini-B type 5 pin
    • Format: USB 2.0 Full Speed (12 Mbps)
  • iOS Dock (Dock Cable) (HOST switch set to iOS DEVICE):
    • Connector: iOS Dock type 30 pin
    • Format: USB 2.0 Full Speed (12 Mbps)

Audio Performance:

  • Frequency Response:
    • 20 Hz to 20 kHz +1/-3 dB
    • (Mic/Line input to Line output, JEITA)
  • Signal-to-Noise (S/N) Ratio:
    • 90 dB or more
    • (Mic/Line input to Line output, JEITA)
  • Total Harmonic Distortion:
    • 0.02% or less
    • (Mic/Line input to Line output, JEITA)

System Requirements:

  • Supported OS:
    • Windows XP 32 & 64-bit
    • Windows Vista 32 & 64-bit
    • Windows 7 32 & 64-bit
    • Mac OS X 10.4.6 or later
    • iOS device 4.3 or later
  • Drivers:
    • Windows: WDM (standard Windows driver)
    • Mac OS X: Core Audio, Core MIDI (standard Macintosh driver)


  • Sampling Frequency: 44.1/48 kHz
  • Quantization Bit Rate: 16-bit
  • Power: Supplied by iOS device via the
    dock connector cable or by computer
    via USB cable
  • Power Consumption: 2.5 W
  • Size & Weight:
    • Weight: 7-3/4 oz. (220 g)
    • Width: 5-15/16" (110 mm)
    • Depth: 5-1/16" (110 mm)
    • Height: 1-5/8" (20 mm)
  • Operating Environment Temperature: 5-35°C (41-95°F)

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating



near perfect audio MIDI interface for iOS

October 8, 2012

MIDI and audio without a glitch. Self powered or using USB port which adds 48V phantom power (e.g. for pro microphones). The iOS connector cable is included and doesn't detach so no worries about forgetting it for your so, oh so important session. ;)

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Tascam iU2